Temperatures are expected to be in the low 50s on Sunday, and bump back up to the 70s and 80s over Saturday and Sunday, according to the National Weather Service. Patchy fog and frost are predicted to settle in after 3 a.m., with temperatures dropping to 35 degrees.

KUSA reports that some parts of Fort Collins saw a tenth of an inch of snow early Friday morning. While September snow closed Trail Ridge Road in Rocky Mountain National Park once again, temperatures in Fort Collins didn't dip low enough for overnight precipitation to turn into measurable snow. Sept. 11 is the earliest it has snowed in Fort Collins since 1889.